I can relate! Whenever I took tests, I would HAVE to be the first one finished - even if it meant being sloppy and rushing.
With the jealousy part too, I would get so jealous whenever someone at work got a promotion or a special assignment instead of me...
It is somewhat better for me now, but I'm not really sure how I got here, to be honest... maybe just realizing that I'm a whole person, and one test score doesn't really mean all that much in the grand scheme of things?